中子光学

They Did It With Mirrors! You can’t stand in front of the paintings of the old masters and not wonder, how did 1) Frans Hals make that lace seem so real? How did 2) Van Dyck make his armor so gleami

发表于:2018-11-28 / 阅读(146) / 评论(0) 分类 疯狂英语2003年

Newtons Apple Tree 牛顿的苹果树 Newton was an English physicist and mathmatician,and was the greatest scientist in his era. 牛顿是一位英国物理学家和数学家,也是他那个时代最卓越的科学家之一。 Isaac Newton was bor

发表于:2018-12-18 / 阅读(61) / 评论(0) 分类 走进剑桥大学

Robert Neuwirth,《影子城市》(Shadow Cities)的作者,在这个演讲里带领大家寻找世界上的寮屋据点--现在十亿人正住在这样的家园上。Robert发现,这些贫民窟正在当地人的努力下,被建设成为年轻而

发表于:2019-01-05 / 阅读(78) / 评论(0) 分类 TED公开课:贫穷至进步

Broadcast: Jan 18 2003 81-year-old Sidney Rittenberg decided as a young man he wanted to help build bridges between cultures. He's devoted much of his career to promoting business ties between China a

发表于:2019-01-07 / 阅读(99) / 评论(0) 分类 VOA2003(上)-文艺之窗

Its a stunning location, but its also mysterious. These stars are not just close together. They are on the move at enormous speeds. Going to the heart of a galaxy might not be the similar to going to an amusement park. The rides are some similar to h

发表于:2019-01-22 / 阅读(170) / 评论(0) 分类 自然百科2011年

可以调焦的眼镜? They may look like an ordinary pair of spectacles, but these glasses are at the forefront of a revolution in eyewear. 它们看起来像普通的眼镜,但是是眼镜改革的最前沿。 Part of a new line of electronic eye

发表于:2019-02-07 / 阅读(64) / 评论(0) 分类 实用英语
学英语单词
abbadi
abelia zanderi rehd.
absorption pump
airtight joint
Albaida
allentown
antedons
antiwear agent
apneustic breathing
application-defined data structure
atcha
auto-correction
bad management
billyohs
break sth up
Bredaryd
cable-sheathing alloy
Carex rostrata
Chaeryongbol
chordosarcoma
colerage
corrective factor
coted
crime of instigation
crural process
cubic fitting model
days all purposes
diode noise
DNOBP
double-stage turbine
ducks bill bit
dynamic derivative
electrical resistor
eosinophilic band cell
expansive colour
extension boring and turning mill
extraction operation
floor-plan
fogging machine
frashas
front-wheel mechanism
gallery stroke
gear factory
gear mark
hematogenous pericarditis
hindered polymer
hurden
improportionate
industrial inorganic chemistry
instantizing chamber
joint amphibious operation
lamenesses
land hunger
Le Shuttle
magnetic moment of particle or nucleus
maximum ground contact pressure
mcilwaine
Mecardonia
metabolism velocity
metal substrate
methylcocaine
milking qualities
moa stone
motor cortex
neustonic
nonuterine
normal-valve
north eastward
odd-balls
one-days
overstorey
pattern of holes
projicient
proof
ptosis adiposa
puerperal perspiration
radial vascular bundle
raw juice measuring vessel
recirculation line
recraiand
residual absorption
rhinoceros horn
riffling
rope socket
saloon passenger
Schile's sign
silver iodide
snibbed
sowing on ridges
stumpnose
supply chambers
target classification
termination before performance is due
tolex
tongue fern
toss someone's cookies
ultra-supercritical
US Border Patrol
Valensole
West New Britain Prov.
working person